The HM Digital TDS-3 Handheld TDS Meter is a compact digital instrument used to measure Total Dissolved Solids (TDS) in water. It helps determine the concentration of dissolved salts, minerals, and impurities by measuring the electrical conductivity of the solution and converting it into a ppm reading.
This digital TDS meter provides quick and reliable measurements through its integrated electrodes and digital LCD display. The wide measurement range makes it suitable for checking drinking water quality, laboratory solutions, and basic industrial testing.
In STEM learning environments, a tds meter digital device is often used in STEM Kit experiments to demonstrate water quality analysis and electrical conductivity concepts. Available through StemVolt, the meter is useful for students and learners performing quick water quality checks.
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Applications:
• Water quality testing in laboratories
• STEM education experiments related to conductivity
• Aquaculture and aquarium water monitoring
• Educational projects using digital TDS meter devices
Technical Specifications:
| Specification | Details |
|---|---|
| Measurement Range | 0–9990 ppm |
| Display Type | Digital LCD |
| Hold Function | Yes |
| Battery | 2 × 1.5V Button Cell |
| Accuracy | ±2% |
| Use Case | Household, Laboratory, Industrial Checks |
Features:
• High-precision sensor for measuring dissolved solids in water
• Digital LCD screen for easy and clear reading
• Hold function allows capturing measurements for later observation
• Compact handheld form factor for portable use
Package Includes:
- 1 × HM Digital TDS-3 Handheld TDS Meter














Mukesh Gupta –
Received this HM Digital TDS-3 Meter with foam protected packing and quick delivery, readings were accurate and secure UPI payment process felt smooth.
Anand Joshi –
Built-in Hold function to freeze the measurement on screen is very useful while checking water quality readings
Mahesh Sharma –
TDS Meter for measuring total dissolved solids in water works accurately and responds quickly during testing
Pooja Yadav –
Accurate water testing device
Vikrant Singh –
Highly recommended TDS meter
Harish Verma –
Bought from the best sensor store in Rajasthan, whatsapp support was responsive and wide measurement range works perfectly.
Shaleen Bhanot –
Reliable store for electronic kit products, this TDS meter gives stable readings and helped me check drinking water quality easily at home.